Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Xavier Guinchard"'
Publikováno v:
Molbank, Vol 2018, Iss 1, p M985 (2018)
2-Phenylsulfenyl-N-propargyl tryptamines have been prepared by electrophilic sulfuration of the corresponding tryptamines. These compounds undergo gold-catalyzed spirocyclizations to the corresponding 2-phenylthiospiroindolenines in good yields. The
Externí odkaz:
https://doaj.org/article/d90de90f58a34651937c03a777d6487a
Publikováno v:
Molecules, Vol 20, Iss 12, Pp 21082-21093 (2015)
The synthesis and characterization of P-chiral phosphonite-, phosphonate- and thiophosphonate-Au(I) complexes are reported. These novel ligands for Au(I) are based on glycomimetic phosphorus scaffolds, obtained from the chiral pool. The catalytic act
Externí odkaz:
https://doaj.org/article/68dfff2628cd423c8a1f440e0b360774
Autor:
Floris Buttard, Xavier Guinchard
Spirocyclic indole derivatives are fascinating tridimensional molecular scaffolds, from both a synthetic and biological point of view. Among the diversity of strategies developed to access this kind of structures, transition metal catalysis recently
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fd21c427e23be6f8958cfd4b5a1b77c
https://doi.org/10.26434/chemrxiv-2023-wgv41
https://doi.org/10.26434/chemrxiv-2023-wgv41
Autor:
Yunliang Yu, Nazarii Sabat, Meriem Daghmoum, Zhenhao Zhang, Pascal Retailleau, Gilles Frison, Angela Marinetti, Xavier GUINCHARD
The enantioselective tandem cycloisomerization / addition reactions of 2-alkynyl enones with 1- and 2-naphthols have been investigated using gold(I) catalysts featuring hybrid phosphine-phosphoric acid ligands, according to the Tethered Counteri-on-D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9fd57771f41384b96fc49b9b7599ab6
https://doi.org/10.26434/chemrxiv-2023-s8hq5
https://doi.org/10.26434/chemrxiv-2023-s8hq5
Autor:
Yunliang Yu, Nazarii Sabat, Meriem Daghmoum, Zhenhao Zhang, Pascal Retailleau, Gilles Frison, Angela Marinetti, Xavier Guinchard
Publikováno v:
Organic Chemistry Frontiers.
The TCDC approach enables tandem cycloisomerization/nucleophilic addition reactions of 2-alkynyl enones with naphthols, with good to excellent control of the regioselectivity and ees up to 99%, under optimized reaction conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59836dbc55427cb12382718ce1126c37
https://doi.org/10.1039/d3qo00415e
https://doi.org/10.1039/d3qo00415e
Publikováno v:
Angewandte Chemie. 134
The direct dearomative addition of arenes to the C3 position of unprotected indoles is reported under operationally simple conditions, using triflic acid at room temperature. The present regioselective hydroarylation is a straightforward manner to ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77a9333fc154518e184633c512ce12f1
https://doi.org/10.1002/ange.202204400
https://doi.org/10.1002/ange.202204400
Autor:
Xavier Guinchard, Angela Marinetti, Nicolas Rabasso, Gilles Frison, Zhenhao Zhang, Arnaud Voituriez, Yunliang Yu
Publikováno v:
Chemical Communications
Chemical Communications, Royal Society of Chemistry, 2021, 57 (82), pp.10779-10782. ⟨10.1039/D1CC04088J⟩
Chemical Communications, Royal Society of Chemistry, 2021, 57 (82), pp.10779-10782. ⟨10.1039/D1CC04088J⟩
The Tethered Counterion-Directed Catalysis (TCDC) approach has been applied to the enantioselective Au(I) catalyzed dearomatizations of 1-naphthols with allenamides. Stereocontrol is ensured by the intramolecular ion-pairing between the chiral gold-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b85a53f590dabcee34f6ff1f65e76cc
https://doi.org/10.1039/d1cc04088j
https://doi.org/10.1039/d1cc04088j
Autor:
Feryel Soualmia, Alain Guillot, Nazarii Sabat, Clémence Brewee, Xavier Kubiak, Michael Haumann, Xavier Guinchard, Alhosna Benjdia, Olivier Berteau
Publikováno v:
Chemistry – A European Journal. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94a263a3f6833fabb54df251066adf0f
https://doi.org/10.1002/chem.202200627
https://doi.org/10.1002/chem.202200627
The direct dearomative addition of arenes to the C3-position of unprotected indoles is reported under operationally simple condi-tions, using triflic acid at room temperature. The present regioselective hydroarylation is a straightforward manner to g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af4596e907645db57f7418893e9d2a72
https://doi.org/10.26434/chemrxiv-2022-c69mz-v2
https://doi.org/10.26434/chemrxiv-2022-c69mz-v2
The direct dearomative addition of arenes to the C3-position of unprotected indoles is reported under operationally simple conditions with triflic acid at room temperature. The present regioselective hydroarylation is a straightforward manner to gen-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::243da4f9ff3e44c03dff52430bf51663
https://doi.org/10.26434/chemrxiv-2022-c69mz
https://doi.org/10.26434/chemrxiv-2022-c69mz